TY - JOUR AU - Hannan, Frank AB - FRANK HANNAN Key: American Journal of Public Health, 12: 1, 16, January, 1922. The figure 12 refers to the volume, 1 to the number of the issue, and 16 to the page of the J ournal, Building a Valve fora Pressure of Three and a Third Tons. D. H. W. FELCH. Chem. & Met. Eng., 33: 10, 596, October, 1926. Working pressure on pumps was increased from 1,500 pounds to 2,000 pounds. The valves as originally furnished were of the barrel type, high-tensile strength nickel alloy. The seats of one of the three pumps were of a good grade of cast gun bronze, of the second pump they were of the same nickel alloy as the valves, and of the third they were of hardened tool steel. After the pumps were put into service the nickel alloy and gun-bronze seats gradually pushed through the cylinder blocks. The hardened tool steel in the third pump remained in place, but the water being highly corrosive they pitted badly. Valves of a copper-aluminum-iron alloy and seats of copper-nickel-iron-chromium alloy were made. The valves showed slight pitting but the seats showed no ercsion.s--v oh» Z•. Baylis. Caustic Embrittlement of Steel. S. W. PARR TI - Abstracts of Water Works Literature JF - Journal - American Water Works Association DO - 10.1002/j.1551-8833.1927.tb12708.x DA - 1927-03-01 UR - https://www.deepdyve.com/lp/wiley/abstracts-of-water-works-literature-tX6rkaecTO SP - 398 EP - 408 VL - 17 IS - 3 DP - DeepDyve ER -